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Microchip Technology ECC204-TFLXWPCS
- Part No.:
- ECC204-TFLXWPCS
- Manufacturer:
- Microchip Technology
- Category:
- Specialized ICs
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Description:
- TRUST FLEX WPC PROVISIONED ECC/H
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Product Details
ECC204-TFLXWPCS - TrustFLEX WPC SOIC Secure Element
ECC204-TFLXWPCS from Microchip Technology is the provisioned 8-lead SOIC, I2C version of the ECC204 TrustFLEX WPC authentication device for wireless-power transmitter designs.
Technical basis: Microchip ECC204-TFLXWPC Data Sheet DS40002471B. No current price or inventory claim is included.
Overview
The ECC204-TFLXWPC secure element is configured for the Wireless Power Consortium (WPC) authentication use case in Qi and Ki systems. The complete -S order code denotes a provisioned 8-SOIC device with I2C. Its configuration supports WPC Slot 0, including a P-256 private key, Device Unit Certificate and Slot 0 digest. Microchip notes that the device does not implement every optional WPC Authentication capability; a complete product must still meet applicable WPC validation and certification requirements.
Key Advantages
Predefined TrustFLEX configuration supports the common Slot 0 transmitter authentication flow.
P-256 key operations occur in hardware without exposing the private key to host firmware.
Stores the WPC Device Unit Certificate and Slot 0 certificate-chain digest.
The S order-code variant provides an 8-lead SOIC and a standard two-wire interface.
Feature Summary
Hardware signing supports asymmetric challenge-response authentication.
Hardware hash operations are available; HMAC requires a separately programmed key.
Unique serial number, true random-number generator and monotonic counter.
WPC credentials require an approved secure provisioning workflow.
Package & Footprint
The registered package is 8-SOIC (0.154", 3.90mm Width). Microchip's S package option is an 8-lead narrow-body SOIC. The local image is a generic package illustration, not a controlled mechanical drawing or proof of authentic marking.
- Confirm pin 1 and land pattern in the current Microchip drawing.
- Place VCC decoupling close to the IC.
- Size I2C pull-ups for actual bus voltage and capacitance.
Pin Functions
For the 8-lead SOIC, pins 1, 2, 3 and 7 are NC; pin 4 is GND; pin 5 is SDA; pin 6 is SCL; and pin 8 is VCC. Confirm the manufacturer top-view drawing before PCB release.
Key Specifications
| Exact order code | ECC204-TFLXWPCS |
|---|---|
| Manufacturer | Microchip Technology |
| Trust option | TrustFLEX WPC, provisioned |
| WPC resource | Slot 0 only; P-256 key, Device Unit Certificate and certificate-chain digest |
| Package | 8-lead SOIC; registered 8-SOIC (0.154", 3.90mm Width) |
| Interface | I2C, up to 400 kHz |
| Supply voltage | 1.65 V to 5.5 V under specified conditions |
| Operating temperature | -40°C to +105°C |
| Asymmetric engine | NIST P-256 ECDSA signing |
| Other functions | SHA-256; HMAC if an HMAC key is programmed |
| Serial number | Unique 72-bit value |
| Counter | Monotonic, default maximum 10,000 increments |
The IC's capabilities alone do not certify the final wireless-power product.
Replacement Considerations
Do not substitute an ECC204-TFLXAUTH or blank TrustCUSTOM device for this WPC-provisioned variant without checking Slot 0 credentials, certificate chain, firmware protocol and WPC approval. The U package changes the footprint. No unverified internal alternative link is included.
Manufacturer Information
Microchip's ECC204-TFLXWPC data sheet DS40002471B explicitly lists ECC204-TFLXWPCS as the provisioned 8-SOIC I2C option. The device is designed around the common WPC Slot 0 transmitter authentication flow; Microchip notes it does not support every WPC Authentication capability. Consult current manufacturer and WPC requirements before claiming a complete product's conformance.
Applications
Protect a transmitter identity in an approved wireless charging design.
Store and use the Slot 0 credential set for the supported flow.
Provide a Device Unit Certificate and chain digest to the host system.
Integrate the security IC with a suitable transmitter controller.
Quality & Authenticity
Verify the full -TFLXWPCS order code, marking, lot traceability and expected provisioned credential set. The generic package JPG does not establish identity. Test certificate and signature responses against a known WPC test procedure.
FAQ
Does this device support every WPC Authentication capability?
No. Microchip specifies support for the common Slot 0 use case, not every optional capability.
Is the final charger automatically Qi-certified?
No. The product must complete applicable WPC validation, testing and certification.
Which package does S select?
The exact -WPCS code selects an 8-lead SOIC with I2C.
Is an HMAC key preinstalled for WPC operation?
An HMAC key is not required for the WPC function; it must be programmed separately if HMAC is used.
Engineering Notice
Confirm WPC membership, credential issuance, secure provisioning and applicable certification before product claims. Review the latest Microchip data sheet, errata, electrical limits and I2C timing in the released design.
ECC204-TFLXWPCS Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- CryptoAuthentication™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Authentication Chip
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
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